Python/EncryptionTool.py at master · Tejaswgupta/Python · GitHub

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# GGearing
# Simple encryption script for text
# This was one my first versions of this script
# 09/07/2017
from __future__ importprint_function

importmath

try:
input=raw_input
exceptNameError:
pass

key=int(math.pi*1e14)
text=input("Enter text: ")
values=reverse= []


defencryptChar(target):
# encrytion algorithm
target= (((target+42) *key) -449)
returntarget


defdecryptChar(target):
target= (((target+449) /key) -42)
returntarget


defencrypt(input_text):
col_values= []
foriinrange(len(input_text)):
current=ord(input_text[i])
current=encryptChar(current)
col_values.append(current)
returncol_values


defdecrypt(enc_text):
col_values= []
foriinrange(len(enc_text)):
current=int(decryptChar(enc_text[i]))
current=chr(current)
col_values.append(current)
returncol_values


defreadAndDecrypt(filename):
file=open(filename, "r")
data=file.read()
datalistint= []
actualdata= []
datalist=data.split(" ")
datalist.remove('')
datalistint= [float(datalist[i]) foriinrange(len(datalist))]
foriinrange(len(datalist)):
current1=int(decryptChar(datalistint[i]))
current1=chr(current1)
actualdata.append(current1)
file.close()
returnactualdata


defreadAndEncrypt(filename):
file=open(filename, "r")
data=file.read()
datalist=list(data)
encrypted_list=list()
encrypted_list_str=list()
foriinrange(len(datalist)):
current=ord(datalist[i])
current=encryptChar(current)
encrypted_list.append(current)
file.close()
returnencrypted_list


defreadAndEncryptAndSave(inp_file, out_file):
enc_list=readAndEncrypt(inp_file)
output=open(out_file, "w")
foriinrange(len(enc_list)):
output.write(str(enc_list[i]) +" ")
output.close()


defreadAndDecryptAndSave(inp_file, out_file):
dec_list=readAndDecrypt(inp_file)
output=open(out_file, "w")
foriinrange(len(dec_list)):
output.write(str(dec_list[i]))
output.close()


# encryption
foriinrange(len(text)):
current=ord(text[i])
current=encryptChar(current)
values.append(current)

# decryption
foriinrange(len(text)):
current=int(decryptChar(values[i]))
current=chr(current)
reverse.append(current)
print(reverse)

# saves encrypted in txt file
output=open("encrypted.txt", "w")
foriinrange(len(values)):
output.write(str(values[i]) +" ")
output.close()

# read and decrypts
print(readAndDecrypt("encrypted.txt"))